1, Kirin 820 CPU
Kirin 820 adopts the core combination of 1+3+4, namely a Cortex-A76 core with a frequency of 2.36GHz, three Cortex-A76 intermediate cores with a frequency of 2.22GHz and four Cortex-A55 small cores with a frequency of 1.84GHz.
Officially, its CPU performance is 27% higher than that of Kirin 8 10. In terms of GPU, Kirin 820 adopts Mali-G57 MC6 architecture design, and supports GPU Turbo, Kirin Gaming+ 2.0 and other technologies. Officials say its performance has improved by 38%.
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It is worth mentioning that this time, Kirin 820 is also equipped with the same NPU as Kirin 990, which adopts a single large core design, and the AI performance is improved by 73% compared with Kirin 8 10.
Running points
In terms of actual running score, the running score of Kirin 820 processor Ann Bunny is between 350,000 and 380,000. In contrast, Kirin 8 10 Antu Bunny runs about 240,000, Kirin 980 Antu Bunny runs about 400,000, Snapdragon 855 Antu Bunny runs about 480,000-500,000, and Snapdragon 765G Antu Bunny runs about 300,000.
2. Snapdragon 778g process.
As a derivative version of Snapdragon 780G, the biggest change of Snapdragon 778G is to give up Samsung and choose TSMC's 6nm process, which reduces the power consumption by 8% compared with its own 7nm process. Theoretically, it will not be much worse than Samsung's 5nm. MediaTek's latest cat 900 and cat 1 100) cat 100. Snapdragon 778G switched to TSMC technology, either Samsung's 5nm production capacity is not enough, or Qualcomm thinks that this technology is not economical to make mid-range chips.
CPU aspect
The CPU core of Snapdragon 778G is still the Kryo 670 of Cortex-A78, which adopts the three-cluster architecture scheme of 1+3+4. It should be noted that Qualcomm officials only indicated that the main frequency of the super-large core is 2.4GHz, and the frequencies of the core and the small core come from the network. According to the available data, the main frequency of Snapdragon Small Nuclear Power Station is a little higher than that of Snapdragon (for reference only).
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GPU aspect
Snapdragon's 778G integrated GPU is Adreno 642L, which has an L suffix more than Snapdragon's 780G integrated Adreno 642, that is, the down-converted version, and the 3D performance will be slightly reduced. Of course, if OEMs are willing to work hard on heat dissipation and system optimization, it is not impossible for Snapdragon 778G to kill Snapdragon 780G. After all, cooling is the core indicator of whether the game is smooth for a long time.
In artificial intelligence
Snapdragon 778G supports the brand-new sixth-generation Qualcomm AI engine, including Qualcomm Hexagon 770 processor, which can bring up to 12TOPS computing power, and its performance is doubled compared with the previous generation platform, and its performance-to-power ratio is improved. At present, AI provides blessings for almost all connection experiences (video calls and voice calls, such as AI-based noise suppression) and better AI-based image use cases. The dedicated low-power artificial intelligence processor integrated in the second-generation Qualcomm sensor hub can support context-aware use cases, thus further enhancing the performance of the platform.
flash memory
Snapdragon 778G supports LPDDR4X-2 133MHz and LPDDR R5-3200 memory, and can be matched with UFS2.2 flash memory (it is rumored that UFS3. 1 is supported, but official website and Qualcomm did not specify it), which meets the storage standard of 202 1 midrange mobile phone.
Image orientation
Snapdragon 778G supports three ISPs and can take three photos or three videos at the same time, including wide-angle, ultra-wide-angle and zoom. Now, users can record video through three shots at the same time, not only can each shot capture the best effect, but also can automatically synthesize three pictures into a professional quality video. Users can also shoot 4K HDR 10+ video like professional photographers, capturing more than 10 billion colors. Snapdragon 778G also supports a single-frame progressive HDR image sensor, so users can use video shooting with the function of calculating HDR to significantly improve contrast and picture details.
Network aspect
Snapdragon 778G integrates Snapdragon X53 5G modem, and the downlink and uplink rates are 3.7Gbps (a little faster than Snapdragon 780) and 1.6Gbps respectively. Snapdragon 778G is also equipped with FastConnect 6700, which supports Wi-Fi 6)Wi-Fi 6E, and the peak download speed is 2.9Gbps (compared with 3.6Gbps for the integrated FastConnect 6900 of Snapdragon 780G).
It is concluded that the CPU performance of Kirin 820 is between Snapdragon 765G and Snapdragon 855, which is very close to Kirin 980. However, with the blessing of self-developed NPU, Kirin 820 is more dominant in AI performance. If nothing happens, this chip will become the new midrange God U this year.